mack or anyone else whos actually done it..

Discuss the RB20, RB25 and RB26 series engines.
cyris3d
Posts: 382
Joined: Wed Jan 01, 2003 9:37 pm
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what are the realistic boost levels for a rb25.. t3/t4 with 550s.. right now with the 370s and 12 psi.. its doesnt seem to be making that much power..


Bryson
Posts: 579
Joined: Thu Oct 03, 2002 8:54 pm
Car: 93 240sx Hatchback /w Sr20

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Have you checked your compression yet? that turbo adapter you made was awesome, I just can't fathom why checking your compression is such a daunting task!

Imissmyturbo
Posts: 757
Joined: Fri Jan 03, 2003 1:55 pm
Car: Car's, Turbo's, sking
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Have you checked your A/F ratio's? What are you running for fuel managment? Didn't you get an apex pfc? You may just need to get the A/F and timming setup and then you should make some good power.

Nismo_Freak
Posts: 10314
Joined: Wed Jul 24, 2002 10:42 pm
Car: 89 Nissan 240SX

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Yeah the PFC just comes with a basemap dude... you need to tune it to make power.

FAST-DATSUN
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Joined: Tue Oct 22, 2002 9:46 am
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With a properly tuned motor 20psi should be ok. I would recommond a head gasket up grade and correctly size injectors and a tuned computer.

cyris3d
Posts: 382
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how much do you charge for your chiped computers for 550s?

BlockHead
Posts: 210
Joined: Tue Jan 07, 2003 1:05 pm

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Dont get that chipped ecu bullcrap, get a power fc and call it a day. And also if you get a power fc we wont make fun of you when you have to get your ecu rechipped when you have added some more mods


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